AEG AGN81800F0 - Manual (Page 33)

NOISES
There are some sounds during normal running (compressor, refrigerant circulation).
BRRR!
HISSS!
CLICK!
BLUBB!
CRACK!
SSSRRR!
OK
CLICK!
CLICK!
BRRR!
BRRR!
BLUBB!
BLUBB!
Noises 33